UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date:
April 28, 2008 4:00 P.M.
Form:
S-3
CIK:
0000928022
Company Name:
CALLON PETROLEUM CO
File Number:
333-148680
CIK:
0001293651
Company Name:
Callon Petroleum Operating CO
File Number:
333-148680-03
CIK:
0001293829
Company Name:
Mississippi Marketing, Inc.
File Number:
333-148680-02
CIK:
0001293656
Company Name:
Callon Offshore Production, Inc.
File Number:
333-148680-01